Some Great Danes have an all-American heritage. Great Dane Trailers, a division of Great Dane Limited Partnership, is one of the largest manufacturers of truck trailers in North America. The company makes standard dry freight trailers, refrigerated trailers (reefers), and platform (or flatbed) trailers. Great Dane has division offices in Georgia and Illinois and manufacturing plants in six US states, with new and used trailer sales, aftermarket parts, and service centers across North America and South America. Great Dane is a unit of Chicago-based investment group CC Industries, which is controlled by Henry Crown and Company.